1301421243 has 8 divisors (see below), whose sum is σ = 1735732800. Its totient is φ = 867361928.

The previous prime is 1301421227. The next prime is 1301421263. The reversal of 1301421243 is 3421241031.

1301421243 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1301421243 - 2⁴ = 1301421227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1301421263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50673 + ... + 71906.

It is an arithmetic number, because the mean of its divisors is an integer number (216966600).

Almost surely, 2^1301421243 is an apocalyptic number.

1301421243 is a deficient number, since it is larger than the sum of its proper divisors (434311557).

1301421243 is a wasteful number, since it uses less digits than its factorization.

1301421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126121.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1301421243 is about 36075.2164650470. The cubic root of 1301421243 is about 1091.7904650026.

Adding to 1301421243 its reverse (3421241031), we get a palindrome (4722662274).

The spelling of 1301421243 in words is "one billion, three hundred one million, four hundred twenty-one thousand, two hundred forty-three".